Logging level set to trace Programmatically

[damo9f]

I'd like to turn trace-level logging on for a short time to debug a classloading issue. I've tried:

 Logger.getLogger("org.jboss.mx.loading").setLevel(XLevel.TRACE);
 x = new NotLoadingClass();
 Logger.getLogger("org.jboss.mx.loading").setLevel(Level.INFO);

but that didn't work. Does anyone know how to do this?

[damo9f]

I have not found a programmatic setup, but this log4j.xml entry works to set logging statically:

<appender name="UCL" class="org.apache.log4j.FileAppender">
 <param name="File" value="${jboss.server.home.dir}/log/ucl.log"/>
 <param name="Append" value="false"/>
 <layout class="org.apache.log4j.PatternLayout">
 <param name="ConversionPattern" value="[%r,%c{1},%t] %m%n"/>
 </layout>
</appender>
<category name="org.jboss.mx.loading" additivity="false">
 <priority value="TRACE" class="org.jboss.logging.XLevel"/>
 <appender-ref ref="UCL"/>
</category>

The snippet is from:

http://docs.jboss.org/jbossas/jboss4guide/r1/html/ch2.chapter.html#ch2.log4j.ex